Results 11 to 20 of about 8,444,233 (303)

Reversible Electric-Field-Driven Magnetic Domain-Wall Motion [PDF]

open access: yesPhysical Review X, 2015
Control of magnetic domain-wall motion by electric fields has recently attracted scientific attention because of its potential for magnetic logic and memory devices.
Kévin J. A. Franke   +5 more
doaj   +2 more sources

The Puzzle of Longitudinal Electric Field Interaction with Transparent Media

open access: yesMATEC Web of Conferences, 2013
Cylindrically polarized beams produced by femtosecond laser written S-waveplate are used to modify amorphous silicon films. Paradoxically, no crystallization is observed in the maximum of longitudinal electric field despite the strongest light intensity.
Zhang Jingyu   +4 more
doaj   +2 more sources

Electric-Field Control of a Single-Atom Polar Bond [PDF]

open access: yesPhysical Review Letters, 2021
The polar covalent bond between a single Au atom terminating the apex of an atomic force microscope tip and a C atom of graphene on SiC(0001) is exposed to an external electric field. For one field orientation the Au-C bond is strong enough to sustain the mechanical load of partially detached graphene, whilst for the opposite orientation the bond ...
M. Omidian   +4 more
openaire   +3 more sources

Golgi polarization in a strong electric field [PDF]

open access: yesJournal of Cell Science, 2005
Directional cell migration requires proper cell polarization. The redistribution of the Golgi apparatus is an important event in the polarization and migration of many types of cells, as a polarized Golgi supplies membrane components for leading edge protrusion. Direct current electric fields induce directional cell migration in a wide variety of cells.
Jin, Pu, Min, Zhao
openaire   +2 more sources

Electric field effects on nematic wetting layers [PDF]

open access: yes, 2005
We present a theoretical investigation of the temperature and electric field dependence of nematic liquid crystal wetting layers close to an aligning substrate within a confined system.
Mottram, N.J.   +3 more
core   +5 more sources

Polyelectrolytes polarization in nonuniform electric fields [PDF]

open access: yesInternational Journal of Modern Physics C, 2014
Stretching dynamics of polymers in microfluidics is of particular interest for polymer scientists. As a charged polymer, a polyelectrolyte (PE) can be deformed from its coiled equilibrium configuration to an extended chain by applying uniform or nonuniform electric fields.
Farahpour, Farnoush   +2 more
openaire   +2 more sources

Electric Field Imaging Using Polarized Neutrons

open access: yesPhysical Review Letters, 2020
We experimentally demonstrate that electrically neutral particles, neutrons, can be used to directly visualize the electrostatic field inside a target volume that can be isolated or occupied. Electric-field images were obtained using a polychromatic, spin-polarized neutron beam with a sensitive polarimetry scheme.
Yuan-Yu Jau   +3 more
openaire   +4 more sources

On the field‐aligned electric field in the polar cap [PDF]

open access: yesGeophysical Research Letters, 2015
AbstractThe Johns Hopkins University Applied Physics Laboratory open‐field line particle precipitation model predicts downward field‐aligned electric field to maintain charge quasi‐neutrality. Previous studies confirmed the existence of such electric fields.
Simon Wing   +3 more
openaire   +1 more source

Scattering polarization in the presence of magnetic and electric fields [PDF]

open access: yesJournal of Quantitative Spectroscopy and Radiative Transfer, 2007
The polarization of radiation by scattering on an atom embedded in combined external quadrupole electric and uniform magnetic fields is studied theoretically. Limiting cases of scattering under Zeeman effect and Hanle effect in weak magnetic fields are discussed.
Yee Oo, Y.   +4 more
openaire   +4 more sources

Cell Polarity: Which Way to Grow in an Electric Field? [PDF]

open access: yesCurrent Biology, 2010
Cell polarity can be influenced by an electric field, but the mechanisms behind this response are poorly understood. A new paper shows that fission yeast cells change their direction of growth in an external electric field and suggests mechanisms based on the cortical pH gradient and on electrophoresis of membrane proteins.
Kalinina, I.   +2 more
openaire   +4 more sources

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